more on participatory planning

http://www.parecon.org/writings/hahnelURPE.htm

"""
The participants in the planning procedure are the workers' councils
and federations, the consumers' councils and federations, and an
Iteration Facilitation Board (IFB). Conceptually, the planning
procedure is quite simple. The IFB announces what we call 'indicative
prices' for all goods, resources, categories of labor, and capital
stocks. Consumer councils and federations respond with consumption
proposals taking the indicative prices of final goods and services as
estimates of the social cost of providing them. Workers councils and
federations respond with production proposals listing the outputs
they would make available and the inputs they would need to make
them, again, taking the indicative prices as estimates of the social
benefits of outputs and true opportunity costs of inputs. The IFB
then calculates the excess demand or supply for each good and adjusts
the indicative price for the good up, or down, in light of the excess
demand or supply. Using the new indicative prices consumer and worker
councils and federations revise and resubmit their proposals.

Essentially the procedure 'whittles' overly optimistic, infeasible
proposals down to a feasible plan in two different ways: Consumers
requesting more than their effort ratings warrant are forced to
reduce their requests, or shift their requests to less socially
costly items, to achieve the approval of other consumer councils who
regard their requests as greedy. Workers councils whose proposals
have lower than average social benefit to social cost ratios are
forced to increase either their efforts or efficiency to win the
approval of other workers. As iterations proceed, proposals move
closer to mutual feasibility and indicative prices more closely
approximate true social opportunity costs. Since no participant in
the planning procedure enjoys advantage over others, the procedure
generates equity and efficiency simultaneously.
"""

Again, I'm having trouble spotting anything radically new here.
Maybe it isn't supposed to be radically new.

My earlier doubts about this setup's ability to aggregrate and
process information effectively stand. But in addition, it
seems to me that though whole thing assumes a rather static
World. Is it assumed that the evolution of technology is not
desirable?

-Carl